FR2093978B1 - - Google Patents

Info

Publication number
FR2093978B1
FR2093978B1 FR7119791A FR7119791A FR2093978B1 FR 2093978 B1 FR2093978 B1 FR 2093978B1 FR 7119791 A FR7119791 A FR 7119791A FR 7119791 A FR7119791 A FR 7119791A FR 2093978 B1 FR2093978 B1 FR 2093978B1
Authority
FR
France
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
FR7119791A
Other languages
French (fr)
Other versions
FR2093978A1 (enrdf_load_stackoverflow
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP4832670A external-priority patent/JPS5128013B1/ja
Priority claimed from JP4833370A external-priority patent/JPS5129404B1/ja
Priority claimed from JP4833670A external-priority patent/JPS5010134B1/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of FR2093978A1 publication Critical patent/FR2093978A1/fr
Application granted granted Critical
Publication of FR2093978B1 publication Critical patent/FR2093978B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/133—Structure or manufacture of heads, e.g. inductive with cores composed of particles, e.g. with dust cores, with ferrite cores with cores composed of isolated magnetic particles
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G11B5/23—Gap features
    • G11B5/235—Selection of material for gap filler

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Magnetic Heads (AREA)
FR7119791A 1970-06-02 1971-06-01 Expired FR2093978B1 (enrdf_load_stackoverflow)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP4832670A JPS5128013B1 (enrdf_load_stackoverflow) 1970-06-02 1970-06-02
JP4833370A JPS5129404B1 (enrdf_load_stackoverflow) 1970-06-02 1970-06-02
JP4833670A JPS5010134B1 (enrdf_load_stackoverflow) 1970-06-02 1970-06-02

Publications (2)

Publication Number Publication Date
FR2093978A1 FR2093978A1 (enrdf_load_stackoverflow) 1972-02-04
FR2093978B1 true FR2093978B1 (enrdf_load_stackoverflow) 1973-06-08

Family

ID=27293264

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7119791A Expired FR2093978B1 (enrdf_load_stackoverflow) 1970-06-02 1971-06-01

Country Status (4)

Country Link
CA (1) CA956088A (enrdf_load_stackoverflow)
FR (1) FR2093978B1 (enrdf_load_stackoverflow)
GB (1) GB1351820A (enrdf_load_stackoverflow)
NL (1) NL7107577A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
CA956088A (en) 1974-10-15
DE2127806B2 (de) 1976-02-12
DE2127806A1 (de) 1972-02-10
FR2093978A1 (enrdf_load_stackoverflow) 1972-02-04
NL7107577A (enrdf_load_stackoverflow) 1971-12-06
GB1351820A (en) 1974-05-01

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